I agree with your last two paragraphs. As for what proofs there are, this list was made by Sherlock, and the refutations are satirical, but I actually think that none of this is indeed proof:
- The mixed blood/DNA trail left by AK right after the murder would have convicted them by itself, but no...it is all normal because she lived there...lol...
- The bloody footprints are not blood because they could have been isolated soil, fruit juice or spinach events that AK and her bf of one week don't remember. That one was right in front of the murder room is just a coincidence, that one print had mixed DNA in it is just normal, and that one print matched the bloody bathmat print is just another expert error.
- That the bathmat footprint was subscribed to RS is also an expert error. After all, there is only 4 sizes difference between RS and RG. And that hammer toe thing? Just cut off a piece of the big toe, and claim RG merged his big and 2nd toe together. Problem solved.
- The DNA on the knife? Another expert error.
- DNA on the bra clasp? Contamination. Just look at some youtube video
- Staged break-in? No, there is a scratch on the wall. Break-in proven.
- Confession? What confession? The police coerced them in an hour or 2. That RS doesn't want to correct himself in court is his good right. That AK confirmed her confession in writing the next day doesn't count either. She didn't mean it like that.
- Witnesses? All druggies, or deaf. Don't count.